Coking-hopper



V. MACKAY.

COKING HOPPER.

APPLICATION FILED JUNE24. 191a.

. 1,322,323. Patented Nov. 18, 1919.

INVENTOR.

M2527 cgay fl/iorn 7;

UNITED STATES PATENT OFFICE.

VASIL MACKAY, OF BOSTON, MASSACHUSETTS.

COKING-HOPIER.

Application filed June 24, 1918.

To all whom it may concern:

Be it known that I, VAsIL MAGKAY, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Coking-Hoppers, of which the following is a specification.

This invention relates to improvements in coking hoppers and particularly to that type of coking device adapted for being attached to the fire doors of furnaces, boilers, etc., for aiding combustion and preventing the smoking of the fire.

The primary object of this invention is to provide a device of the character described whereby the mineral coal or fuel is initially subjected to the action of the fire and deprived of bitumen, sulfur and other extraneous and volatile matter before being fed as fuel into the boiler or furnace by the supporting of said mineral coal or fuel banked upon the bottom of the device in a mass to approximately close the fuel opening in the furnace.

Another object of the invention is the provision of a device of this character, wherein the hopper is constructed with an open front located opposite the fuel feed opening in the rear thereof and an open top so that when fuel is supported banked upon the bottom of the hopper and approximately closing the fuel feed opening, the said fuel after coking can be readily and easily fed through the fuel feedopening into the furnace by a hoe or other implement as access to the uppermost portion of such fuel of the bank can be had to force it through the opening and the massgradually worked in the direction of the said opening, the open top and front of the hopper permitting a free manipulation of the hoe or other implement for this purpose.

Further objects of this invention are to provide a device of the class specified which is simple in its construction and arrangement, strong, durable and efiicient in its use, which may be readily attached to the fire doors of furnaces, boilers, etc., of ordinary construction, and which is comparatively inexpensive to manufacture.

To the accomplishment of these and such other objects as may hereinafter appear, the invention consists of the novel construction, combination and arrangement of parts herein specifically described and illustrated Specification of Letters Patent.

Patented Nov. 18, "1919. Seria1 No. 241,495.

in the accompanying drawing wherein is shown an embodiment of the invention.

In the drawing forming a portion of this specification and wherein like numerals of reference designate corresponding parts throughout the several views:

Figure 1 is a side elevational view of a coking hopper, embodying the invention, attached to a fire door.

Fig. 2 is a front elevational view thereof.

Fig. 3 is a front elevational view of a slight modification of the device showing the coking plate hingedly connected.

Fig. & is a cross sectional view on the line xa2, Fig. 3, as applied to a furnace door.

Fig. 5 is a cross sectional perspective view of the device.

Fig. 6 is a top plan view.

Referring more in detail to the drawing, 1 represents a furnace or boiler fire door of the ordinary construction provided with the usual hinge lugs 2 and locking devices 3, and having the front or central portion removed therefrom to provide the opening at.

The coking hopper 5, formed integrally, comprises the coking plate 6, the side walls 7 and 8 and the rear wall 9, and is constructed preferably from sheet metal.

The rear of the hopper 5 is constructed to form the neck 10 which is provided with the opening 11 commensurate in size and adapted to register with the opening 4 in the fire door 1. The coking hopper shown in Figs. 3 and 4 is carried by the fire door 1 and is detachably mounted upon the door 1 by means of the bolts 12 and the open slots 13 in the rear wall 9, to facilitate its removal if desired.

The side wall 8 is preferably constructed to flare outwardly to increase to capacity of the hopper. The form, contour or shape of the hopper 5 may vary extensively, it only being essential that the construction of the hopper be such as to permit the opening of the fire door 1 at an angle of about forty-five degrees, and that it does not interfere with the operation of contiguous fire doors and hoppers.

Themodification shown in Figs. 3, at, 5 and 6, of the drawing, differs only in construction to the hopper 5, herein before described, in that the coking plate 14 is hingedly connected at 15 to the rear wall 16 and when in the open position rests upon the right angularly bent portions 17 and 18 of the side walls 19 and 20, respectively. By this arrangement the coking plate 14 serves as a cover for the opening 21 in the rear wall 22 when the hopper is empty. The coking plate 14 is provided with the pins 23 secured thereto and adapted to engage in the apertures 24 when the plate 14 is in the open position and prevents the tendency of the side walls to spread when the hopper is filled.

In practice the fuel or coal is banked in the hopper to be fed through the openings in the rear wall and in the fire door. While the coal is thus carried in the hopper it is subjected to the fire in the furnace or fire box and deprived of bitumen, sulfur, and other extraneous and volatile matter, and when fed to the furnace after this treatment, will make a smokeless fire, as the fuel will have been partially coked. The construction of the hopper with the open front opposite a fuel feed opening in its rear wall and also an open top enables the hoeing of the fuel from the top of the banked mass upon the bottom of the said hopper through the fuel feed opening into the furnace and particularly when the coked fuel has become crusted or a hardened surface thereover has been formed by the cool air striking the bank of fuel during the process of coking or after said coking has taken place. In the feeding of the coking fuel an operator moves the uppermost portion of the bank toward the fuel opening in the rear wall of the hopper and by working the fuel toward said fuel feed opening continuously the banked fuel will be removed from the hopper and fed into the furnace.

From the foregoing description, taken in connection with the accompanying drawing, the advantages of the construction and the method of operation will be readily apparent to those skilled in the art to which the invention appertains, and while describing the principle of the invention together with the device which is now considered to be the best embodiment thereof, it is to be understood that the device shown is merely illustrative and that various changes. in the form, proportion and the minor details of construction may be resorted to without depart-' ing from the principle or sacrificing any of the advantages of the invention as defined in the appended claims.

What I claim as new and desire to secure by Letters Patent is:

1. A coking hopper having an unobstructed open front and top for attachment to a furnace about a fuel opening therein and comprising a coking plate movably sup ported adjacent said opening and disposed Wholly outside of the furnace and adapted when in one position to permit banking'of fuel thereon to close the fuel opening.

2. The combination with a furnace fire door provided with a fuel feed opening, of a coking hopper having an unobstructed open front and top adapted to be attached to the door to communicate with the opening and disposed wholly outside of a furnace with one side wall adjacent to the opening and its opposite side wall spaced a distance from the latter, and a coking plate disposed beneath the opening for the banking of fuel thereon to close said opening and movable in position for closing said opening.

3. A cokin hopper having an unobstructed open front and top for attachment to a furnace about a fuel opening therein for communication with the same and disposed wholly outside of the furnace with one side wall located adjacent to the opening and its opposite side wall spaced a distance from the latter and a bottom formed on said hopper to lie beneath said opening and extend ing horizontally outwardly a distance there from to permit fuel to be banked thereon between the side walls and close the fuel opening for the coking of the said fuel.

4. The combination with a fire door provided with a fuel feed opening of a coking hopper having an unobstructed open front and top attached exteriorlyto the door for communication with the opening and comprising a coking plat-e, side walls rising above the plate, a rear wall formed integrally therewith, said coking plate being disposed wholly outside of the door and lying beneath the opening therein and extending outwardly from said door for a distance therefrom to permit banking of the fuel thereon to close said opening.

5. A hopper of the character described having an unobstructed open front and top and a fuel feed opening in its rear wall and a bottom forsupporting banked fuel of a depth to approximately close the fuel feed opening, the said open front and top being adapted to permit the feeding of the fuel from the upper portion of the bank thereon to the lower portion thereof in a direction toward and through the fuel feed opening.

In testimony whereof I affix my signature in the presence of two witnesses.

VASIL MACKAY.

Vitnesses JENNlE Jones,

R; CLEMENT VVnBnn. 

